Chuck Norcutt wrote:
> You may be referring to the 580EX's "catchlight" panel as the 580EX has both
> a catchlight and diffuser panel. The catchlight panel is a white panel
> designed specifically for reflecting some light forward when the flash is
> used in ceiling bounce position.
Nope, didn't read about the 580EX.
> The diffuser panel is for extending the angle of coverage to an 18mm lens.
> The 540EZ doesn't have a catchlight panel but the diffuser panel does manage
> to work somewhat the same way if you just pull it out but don't fold it over
> the flash tube. You will not find what I described in the 540EZ manual.
>
I didn't have that manual until your recent link posting about the
excellent old manual source. There are some other quite useful resources
on the web which I read before deployment.. This one is very clear, yet
comprehensive and specifically talks about use of the diffuser panel for
fill light. <http://eosdoc.com/manuals/flash/540EZ/>
Others I used are
<http://www.mir.com.my/rb/photography/hardwares/classics/eos/EOS-1n/Flash/Canon_540EZ/index.htm>
and <http://photonotes.org/articles/eos-flash/index.html>
Moose
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